<?php

namespace app\common\library\storage\engine;

use app\common\library\helper;

/**
 * 本地文件驱动
 * Class Local
 * @package app\common\library\storage\drivers
 */
class Local extends Server
{
    protected string $uploadDir = '';
    protected string $uploadDirRoot = 'uploads/';
    public function __construct()
    {
        parent::__construct();
        $this->uploadDir = date('Y/m/d/H/');
        if (!is_dir($this->getUploadDir())) {
            mkdir($this->getUploadDir(),0777, true);
        }
    }

    /**
     * 上传图片文件
     * @return array|bool
     */
    public function upload()
    {
        return $this->isInternal ? $this->uploadByInternal() : $this->uploadByExternal();
    }

    /**
     * 外部上传(指用户上传,需验证文件类型、大小)
     * @return bool
     */
    private function uploadByExternal()
    {
        // 上传目录
        // $uploadDir = WEB_PATH . 'uploads';
        // 验证文件并上传
        $info = $this->file->validate([
            'size' => 4 * 1024 * 1024,
            'ext' => 'jpg,jpeg,png,gif'
        ])->move($this->getUploadDir() , $this->fileName);
        if (empty($info)) {
            $this->error = $this->file->getError();
            return false;
        }
        return true;
    }

    /**
     * 内部上传(指系统上传,信任模式)
     * @return bool
     */
    private function uploadByInternal()
    {
        // 上传目录
        // $uplodDir = WEB_PATH . 'uploads';
        // 要上传图片的本地路径
        $realPath = $this->getRealPath();
        if (!rename($realPath, $this->getUploadDir() . $this->fileName)) {
            $this->error = 'upload write error';
            return false;
        }
        return true;
    }

    /**
     * 删除文件
     * @param $fileName
     * @return bool|mixed
     */
    public function delete($fileName)
    {
        // 文件所在目录
        $filePath = $this->getUploadDir() . $this->fileName;
        return !file_exists($filePath) ?: unlink($filePath);
    }

    /**
     * 返回文件路径
     * @return mixed
     */
    public function getFileName()
    {
        return $this->uploadDir . $this->fileName;
    }

    /**
     * 返回文件路径
     * @return mixed
     */
    public function getFilePath()
    {
        return '/' . $this->uploadDirRoot . $this->uploadDir . $this->fileName;
    }

    protected function getUploadDir()
    {
        return WEB_PATH . $this->uploadDirRoot . $this->uploadDir;
    }
}
